1. Ahmadu Bello University,Institute for Agricultural Research,Zaria,Nigeria
2. Universiti Malaysia Perlis,Faculty of Electrical Engineering and Technology,Malaysia
3. Ahmadu Bello University,Department of Electrical Engineering,Zaria,Nigeria
4. Jubail Industrial College,Department of Electrical and Elctronic Engineering,Jubail,KSA
5. Edinburgh Napier University,School of Computing, Engineering and the Built Environment,Edinburgh,Scotland,UK